[PD] gem alpha channel q

[rene beekman]

that inverts the entire image, not just the alpha channel...


On Oct 14, 2009, at 05:35, Jose Luis Santorcuato wrote:

> [pix_invert]...i think...
>
> Cheers
>
> Chile
>
> 2009/10/11 rene beekman <r at raakvlak.net>
>
> how does one invert an alpha channel in gem ?
> i've created an alpha channel from the rgb channels, but need the  
> channel to be inverted. somehow i can't seem to find a way to do  
> this...
>
> hope it is just sleep deprivation and i'm simply overlooking the  
> obvious... :)
>
> thanks in advance,
>
> rene
>
>
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